linux-kernel - Re: [PATCH v4 4/7] iommu: Pass in old domain to attach

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20250924192246.GK2617119@nvidia.com>
Date: Wed, 24 Sep 2025 16:22:46 -0300
From: Jason Gunthorpe <jgg@...dia.com>
To: Nicolin Chen <nicolinc@...dia.com>
Cc: joro@...tes.org, bhelgaas@...gle.com, suravee.suthikulpanit@....com,
	will@...nel.org, robin.murphy@....com, sven@...nel.org,
	j@...nau.net, alyssa@...enzweig.io, neal@...pa.dev,
	robin.clark@....qualcomm.com, m.szyprowski@...sung.com,
	krzk@...nel.org, alim.akhtar@...sung.com, dwmw2@...radead.org,
	baolu.lu@...ux.intel.com, kevin.tian@...el.com,
	yong.wu@...iatek.com, matthias.bgg@...il.com,
	angelogioacchino.delregno@...labora.com, tjeznach@...osinc.com,
	paul.walmsley@...ive.com, palmer@...belt.com, aou@...s.berkeley.edu,
	alex@...ti.fr, heiko@...ech.de, schnelle@...ux.ibm.com,
	mjrosato@...ux.ibm.com, gerald.schaefer@...ux.ibm.com,
	orsonzhai@...il.com, baolin.wang@...ux.alibaba.com,
	zhang.lyra@...il.com, wens@...e.org, jernej.skrabec@...il.com,
	samuel@...lland.org, jean-philippe@...aro.org, rafael@...nel.org,
	lenb@...nel.org, yi.l.liu@...el.com, cwabbott0@...il.com,
	quic_pbrahma@...cinc.com, iommu@...ts.linux.dev,
	linux-kernel@...r.kernel.org, asahi@...ts.linux.dev,
	linux-arm-kernel@...ts.infradead.org, linux-arm-msm@...r.kernel.org,
	linux-samsung-soc@...r.kernel.org,
	linux-mediatek@...ts.infradead.org, linux-riscv@...ts.infradead.org,
	linux-rockchip@...ts.infradead.org, linux-s390@...r.kernel.org,
	linux-sunxi@...ts.linux.dev, linux-tegra@...r.kernel.org,
	virtualization@...ts.linux.dev, linux-acpi@...r.kernel.org,
	linux-pci@...r.kernel.org, patches@...ts.linux.dev,
	vsethi@...dia.com, helgaas@...nel.org, etzhao1900@...il.com
Subject: Re: [PATCH v4 4/7] iommu: Pass in old domain to attach_dev callback
 functions

On Wed, Sep 24, 2025 at 12:18:43PM -0700, Nicolin Chen wrote:
> On Wed, Sep 24, 2025 at 03:43:46PM -0300, Jason Gunthorpe wrote:
> > I've split things like this into more patches before, but this
> > actually isn't too bad, so I wouldn't push for it.
> 
> Thanks. I will keep the flow in mind.
> 
> For working more on the new test attach op, I'd probably keep it
> as-is.
> 
> > A series version would be:
> >  - add a new op 'attach_dev2' or whatever
> >  - Convert all drivers that just change the signature
> >  - Convert drivers that have a trivial iommu_get_domain_for_dev()
> >  - N patches to convert more complex drivers one by one
> >  - Remove old op attach_dev
> 
> Does this mean that drivers would live with the 'attach_dev2' op
> renamed from 'attach_dev'? Or the last could rename it back?

Could rename back, often better to select a name that doesn't need a
rename back :)

Jason